Crosswinder with automatic drive control means



Feb. 18, 1947. w. SIEGENTHALER 2.416,072

CROSSWINDER WITH AUTOMATIC DRIVE CONTROL MEANS Filed Sept. 9, 1944 Patented Feb.

' f silt i caosswnvnea enema v Ana-omen .con'rao s Walter Sieg'enthaler,Erlenbach, Zurich, switzea land, assignor to ehinenfabrik Scharer, Erlenbach, Switzerlandv Application. September 9, 1954, Serial No. 553,415

In Switzerland September 9, i948 9 Claims. (Cl-.242-d3) the purpose of obtaining uniformity of thread feed.

The known arrangements for efiecting this kind of'automatic drive control are provided without exception with driving means that are ar= ranged exteriorly of the gear box and have driving motion imparted thereto from a driving shaft which is provided in common with a pluralityof winding machines which are arranged in a row on the same frame. In such arrangements individual attendance of the winding machines is hampered and said driving means are susceptible to contamination-- whereby their efficiency may become unsatisfactory or even disturbed.

In order to avoid this drawback, according to the present invention a speed control device is arranged in the gear box which transmits driving motion to the winding spindle so as to regulate said motion dependent upon requirements.

By this means, the advantage over the known arrangements referred toabove is obtained, at the same time, that the driving motion of the winding machines of a row can be regulated, that is, chosen at will by means of the common driving shaft either through the intermediary of friction discs or a driving belt of fiat or wedge shaped cross section. A An embodiment of the present invention is illustrated by way 01 example only in the accom= panying drawing in which Fig. .1 is an elevational view,

Fig. 2 a corresponding sectional view, and

Fig. 3 shows a cross section of the gear box.

In the drawing only the parts necessary for a proper understanding of the invention are shown.

The numeral i refers to the winding spindle which takes its bearings 3 and 4 in the gear box 2 in an inclined position and the lower portion of I which supports a winding carrier 5. The winding spindle i, the driving arrangement of which will be hereinafter explained, transmits driving 'movement through a bevel wheel'drive 6, I to an upstanding fluted shaft 8 which is seated in a foot bearing 9 arranged on the bottom of the gear box 2 and projects into a casing Ill within which it 'protrudes' through a bevel wheel I l which is suszonta'l shaft it which is mounted. in'two bearings it, it. The hearing it is situated in the gear casing is and the bearing 88 is arranged on an angular bracket it which is connected to this casing.

0n the shaft It the thread guide drum i8 is secured. The gear casing to is engaged by one end oi a flexible tension member which passes over a guide roller l9 fastened to the gear box 2 and the second end of which carries a weight 20 by effect of which the load constituted by the gear casing It and the thread guide drum i8 is overcome and the drum it is thus urged in the direction toward the winding carrier 5, that I is, against the crosswind A being in progress of formation on said carrier. The gear casing i0 is vertically displaceably guided by means of two rods 2t, 22 which lie in one and the same plane and the lower ends of which rest on a common carrier rail 23 while their upper ends support the gear box 2.

} On a cross bolt it carried by the braclret ill on the gear casing in two rollers 25 are mounted which bear against the guide rods 2t, 22 from gear 27 transmits its rotational movement via a screw gear 29 to a thread guide 3t] which is arranged on the mounting shaft of said gear out side of the casing iii. This thread guide conducts the winding thread arriving from a lower spool toward the drum it which receives the thread by means of its intercrossing groove portions 28.

' In the operation of the crosswinder precedingly described the driven winding spindle i positively transmits driving motion via the bevel wheel drive 6, I to the fluted spindle 8, the bevel gear drive H, i3 and to the shaft it of thethread guide .drum l3. Due to the fact that the thread guide drum [8 is urged against the crosswind A in progress of formation on the winding carrier 5 by influence of the weight 28] the thread guide drum I8. is readjusted together with its driving and mounting shaft H in accordance with the increase in thickness of the thread winding and is thus moved downwardly, this downward movement being shared by the gear casing it so that the bevel wheel H is accordingly shifted longitudinally of the spindle 8 in engagement with the spindle fluting.

. 3 1 The thread guide drum ll exerts on the thread winding A in progress of formation a slight pressure only so that the, winding does not become unduly tight but tight enough for preventing the structure of the thread winding from being detrimentally affected by influence of centrifugal force. On the other hand the bearing engagement between the thread guide drum l3 and the thread winding A contributes toward enhancing theprecisinn with which the winding thread is placed on the winding support 3, Again, by virtue of the thread guide drum l8 sharing in the driving movement the winding thread is preserved'insofar as it is not subiectedto material friction at the point of contact between the drum l3 and the thread winding A. The provision of unidirectional movement at all times during the operation of the machine for the rotating drum which serves as the thread guide facilitates uniformity of tensioning of the winding thread.

' suitable weight :0. The construction of the machine may also be such that the thread guide drum l3 comes into contact with the thread 1 porting said package for common rotation therewith, a thread guidedrum, means for positively driving said drumv from said spindle independently of the contact of the guide drum with the rangement between said thread guide drum and Coaxially with the winding spindle l is arranged a driving shaft 3| which extends through a twin bearing structure 32, being secured on the gear box 2, and the end of which, projecting out of the gear box 2, is provided with a driving disc 33. The driving shaft 3| carries on its end situated' within the gear box 2| a disc 34 which is parallel with a disc 39 secured to the winding spindle I. Each of the two coupling discs 34 and 35 is provided on its end face confronting the other disc with a circular groove 38 of arcuate.

cross section. In each of the discs 34, is seated the two arcuate cross sectional groove portions,

engaging at a time with the disc 31. The round control disc 31 is mounted by means of a central pin 39 in a mounting stirrup 39 each end of which is mounted on a bolt 40. either of which is arranged'on a longitudinal wall of the gear box 2.

One of saidbolts provides at the same time a mounting shaft for a spur gear 4| which is carried by an associated neck on the stirrup 39. The spur gear 4| meshes with a spur gear 42 the mounting shaft 43 of which has arranged thereon exteriorly of the gear box 2 a slotted carrier arm 44 into the longitudinally extending guide slot of which engages a cross pin 45 on an adjustingrack rail 46 which is associated with a stop roller 41. In the operation of the crosswinder the driving movement of the driving shaft 3| is transmitted to the winding spindle I via the discs 34, 31 and 35 which form together a speed con trol device.

As precedingly explained the casing Ill lowers commensurate with the increase in. thickness of 1 the winding A in progress of formation. In the course of this lowering movement the slotted arm 44 pivots downwardly by action of the rack rail moving together with the casing l0 so that by means of the shaft 43 the two gears 42, 4| are accordingly rotated. In consequence thereof the tion can be regulated by accordingly choosing a thread package in progress of formation on said winding spindle, a drive forsaid winding spindle,

and an automatic speed control device connected between said drive and said positive driving arsaid driving spindle responsive tov the growth of the package for automatically regulating the velocity ,of the thread winding from said thread guide drum on to said package.

2. In a crosswinder for winding a crosswound thread package, a driven winding spindle for supporting said package for common rotation therewith, a thread guide drum, means for positively driving'said drum from said spindle indeof the package, andcontrol means included in said speed control device. susceptible to the influence of said package increasing in diameter for accordingly automatically regulating the velocity of the thread winding from said thread guide drum on to said package.

'3. In a'crosswinder for winding 9. crosswound thread package, a driven winding spindle for,

supporting said package for common rotation therewith, a thread guide drum, means for positively driving said dru'm from said spindle inde-' pendently of the contact of the guide drum with the thread package in progress of formation on said winding spindle, a drive for said winding spindle, an automatic speed control device connected between said drive andsaid positive driving arrangement between said thread guide drum and said driving spindle responsive to the growth of the package, a pair of parallel coupling discs included in said device between said drive and said winding spindle, and a control disc rockingly arranged on an axis so as to be susceptible to the influence of said package increasing in diameter and operatively interconnecting said coupling discs for reducing the speed of revolution of said winding spindle commensurate with said increasing diameter and accordingly regulating the velocity of the thread winding from said thread guide drum on to said package.

4. In a crosswinder for winding 2. crosswound thread package, a driven winding spindle for supporting said package for common rotation therewith, a thread guide drum, means for positively driving said drum from said spindle independently of the contact of the guide drum with the thread package in progress of formation on said winding spindle, an automatic speed control device connected between said drive and said positive driving arrangement between said thread guide drum and said driving spindle responsive to the growth of the package, a pair of parallel coupling discs included in said device between saiddrive and said winding spindle, each of said discs having on its end face confronting the other disc a circular groove of arcuate cross section and a control disc rockingly arranged on an axis so as to be susceptible to the influence of said package increasing in diameter and operatively interconnecting said coupling discs by engaging in said grooves in said discs for reducing the speed of revolution of said winding spindle commensurate with said increasing diameter and accordingly regulating the velocity of the thread winding from said thread guide drum on to said package.

5. In a crosswinder for winding 2. crosswound thread package, a driven winding spindle for supporting said package for common rotation therewith, a thread guide drum, means for positively driving said drum from said spindle independently of the contact of the guide drum with the thread package in progress of formation on said winding spindle, a drive for said winding,

spindle, an automatic speed control device connected between said drive and said positive driving arrangement between said thread guide'drum and said driving spindle responsive to the growth of the package, a pair of parallel coupling discs included in said device between said drive and said winding spindle, a. control disc, a mounting stirrup including an axis for said control disc to rock thereabout so as to be susceptible to the influence of said package increasing in diameter and operatively interconnecting said coupling discs, and driving means for adjusting said control disc for reducing the speed of revolution of said winding ,spindle commensurate with said increasing diameter and "accordingly regulating the velocity of the thread winding from said thread guide drum on to said package.

6. In a crosswinder for winding a crosswound thread package, a driven winding spindle for supporting said package for common rotation therewith, a thread guide drum, means for positively driving said drum from said spindle independently of the contact of the guide drum with the thread package in progress of formation on said winding spindle, a drive for said winding spindle, an automatic speed control device connected between said drive and said positive driving arrangement between said thread guide drum and said driving spindle responsive to-the'growth of the package, a driving coupling disc and a driven coupling disc included in said device in parallel relation to each other between said drive and said winding spindle, and a control disc rockingly arranged on an axis so as to be susceptible to the influence of said package increasing in diameter and operatively interconnecting said coupling discs for reducing the speed of revolution of said winding spindle .and that of said drive at the same time commensurate with said increasing diameter and accordingly regulating the velocity of the thread winding from said thread guide drum on to said package.

7. In a crosswinder for winding a crosswound thread package, a driven winding spindle for supporting said package for common rotation therewith, a thread guide drum, means for positively driving said drum from said spindle independently of the'contact oi the guide drum with the thread package in progress of formation on said winding spindle, a drive for said winding spindle, an automatic speed control device connected between said drive and said positive driving arrangement between said drum and said driving spindle responsive to the growth of the package for automatically regulating the velocity of the thread winding from said drum and said package as required, and means connected between said winding spindle and said drum, for separating said two parts from each other in accordance with said package increasing in diameter, said separating movement being instrumental in adjusting said control device.

8. In a crosswinder'for winding a crosswound thread package, a driven winding spindle for supporting said package for common rotation therewith, a thread guide drum, means for positively driving said drum from said spindle independently of the contact of the guide drum with the thread package in progress of formation on said winding spindle, means for displaceably guiding said drum relative to said winding spindle, an automatic speed control device connected between said drive and said positive driving arrangement between said drum and said winding spindle responsive to the growth of the package, a pair of parallel coupling discs included in said device between said drive and said winding spindle, and a control disc rockingly arranged on an axis so as to be susceptible to the influence of said package increasing in diameter and operatively interconnecting said coupling discs for automatically regulating the velocity of the thread winding from said drum on to said package in accordance with said displacing movement of said drum.

9. In a crosswinder for winding a crosswound thread package, a driven winding spindle for supporting said package for common rotation therewith, a thread guide drum, means for positively driving said drum from said spindle independently of the contact of the guide drum with the thread package in progress of formation on said winding spindle, an automatic speed control device connected between said drive and said positive driving arrangement between said drum and said winding spindle responsive to the growth of the package, a pair of parallel coupling discs included in said device between said drive and said winding spindle, and a control disc rockingly arranged on an axis so as to be susceptible to the influence of said package increasing in diameter and operatively interconnecting said coupling discs for automatically regulating the velocity of the thread winding from said drum on to said package inaccordance with the relative displacing movement of said winding spindle.

WALTER SIEGEN'I'HALER. 

